Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Trelewis drift mine, photograph
Controlled flooding of Trelewis Drift Mine during closing down procedure. View inside drift - on left can be seen bags of cement ready for pouring into mixer and pump. Ink stamp on reverse with date and inscription.
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.